Railway-switch.



switch-rails.

I PATENT Patented August 4, 1903:

OFFICE.

GEORGE TYUS, OF PORTLAND, ARKANSAS uAlLwAv svvlrcH.

SPECIFICATION forming part of Letters Patent No. 735,318, dated August 4, i903.

Application filed May 4, 1903. semi No. 155,651. (No model.)

To all whom it may concern:

zen of the United States, residing at Portland,

Ashley county, State of Arkansas, have inventedcertain new and; useful Improvements in Railwayis a specificationl My invention relates to certain new and useful improvements in railway-switches,and has especial reference to means of locking the switch-points against movement, thereby securing additional safety.

The object of my invention is to providea new and efficient means of looking or holding the switch-point against movement, which object I accomplish as will be more'fully hereinafter set forth in the drawings, specification, and claims.

In the'drawings, Figure 1 is a plan view of a railroad-switch with my device attached, showing switch set for main line and locked against movement. Fig. 2 is a sectional view taken on the line II II ofEig. 1. Fig. 3 is a sectional view taken on the line III III of Fig. 1. V

Referring now to the drawings, in which like numerals indicate the same or like parts in all the views,1 1 are the track-rails; 2 2, the

switch-points; 3 3,the switch-ties 4,the head block, and 5 5 the switch-rods connecting the A the No. 1 rod, and which extendsout to one side ofthe track for connectionito the switchstand. (Not shown.) Attachedto the rod 6 is a piece7, having a rack-section 8 on its under surface. This piece 7 is connected to the switch-rod 9 and by that to the switch-stand (not shown) in the ordinary manner, the switch (reference being omitted to the lock witches, of which the following 6 is oneof these rods, known as y i to throw the switch-points 2 for the side track Be it known that I, GEORGE C. TYUs, a citiwill raise the locking-blocks 18 and turn them through about one hundred and eighty degrees until they again rest on the ties, but in a reversed position-i. a, one away from the switch. The blocks 18 are provided with slots 19,which engage that switch-point which is away from the rail. They may be made to fit over this as loosely or as snugly as may be desired.

20 represents bars to hold the rack down against the gear 10.

If so desired, the pinion 10 may be slipped to one side on the shaft 11 or the gear 13 14 be disengaged, permitting the locking-blocks 18 to be moved independently of the switch. For this purpose I extend the shaft 15 and form a handle 21 thereon by which the device can be operated. By thus separating the .1001: from the switch-operating means I am enabled to lock the switch open or shut,while when itacts with the switch I can lock it only when it is set for main track.

22 is a look by which the handle 21 can be locked to the head-block when so desired.

While I have shown the shaft 15 attached to one of the ties 3, it can by shortening the arms 17 be placed 011 the headblock itself, and when so placed preferably comes on one side of same instead of flat on top, as shown.

In operation when the-switch is thrown in j the usual manner the rack Soperates the pinion 10 and this the bevel-gears, 13 14 and through them the locking-block l8.

1 Having nowfully described myinvention,

what Iclaim, and desire to secure by Letters Patent in the United States, is

1. In asWitch-lockingdevice the combination with the switch-points, the switch-stand, and the switch-rod, of a shaft, arms extend- I ing outward from said shaft, locking-blocks on said arms, a bevel-gearon said shaft, a second bevel-gear, a shaft with a pinion thereon carrying said second bevel-gear and a rack attached to said switch-rod and meshing with said pinion, substantially as shown and described. i

2. In a switch-locking device the combination with the switch-points, the switch stand and switch-rod, of a shaft, arms extending outward from said shaft, locking-blocks on In testimony whereof I have signed my said arms, abevei-gear on said shaft, a second name to this specification in the presence of o bevel-gear, a shaft with a pinion thereon cartwo subscribing witnesses.

r in said second bevelear and a rack attgchgd to said switch-rod and meshing with GEORGE TYUS' said pinion, and means of disengaging said Witnesses:

pinion from said rack, substantially as shown J. W. PUGH,

and described. ED. WEIs. 

